.wrapper{
    width: 1200px;
    height: 800px;
    margin: 0 auto;
}
.header{
    background-color: black;
    width: 100%;
    height: 7%;
    color:white;
    font-size: 25px;
}
.page-content{
    background-image: url(../img/firefighting/background1.png);
    width:100%;
    height:93%;
    background-size: 100%;
}
.covered{
    background-image: url(../img/firefighting/background.png);
    width: 100%;
    height: 100%;
    background-size: 100%;
    float: right;
}
.device{
    background-image: url(../img/firefighting/firefighting.png);
    width: 30%;
    height: 100%;
    background-size: 100%;
    background-repeat: no-repeat;
    background-position: 0 50%;
    margin-left: 7%;
}
.covered1{
    height: 50%;
    width: 60%;
    float: right;
    background-color: white;
}
.covered p{
    font-family: 微软雅黑;
    font-weight: bold;
    font-size: 20px;
    margin: 0;
    line-height:30px;
}
.covered2{
    height: 45%;
    width:  60%;
    float: right;
    background-color: white;
}
.line{
    background-image: url(../img/firefighting/line.png);
    width: 60%;
    float: right;
    height: 5%;
    background-color: white;
}